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F F PA- 1700196 (SA, TE) Project - 5 - 5 March 2020 San Joaquin County Dewatering Permit If the proposed project includes construction or groundwater dewatering to be discharged to land , the proponent may apply for coverage under State Water Board General Water Quality Order ( Low Threat General Order) 2003 -0003 or the Central Valley Water Board ' s Waiver of Report of Waste Discharge and `JVaste Discharge Requirements ( Low Threat Waiver) - R5-2018-0085 . Small temporary construction a dewatering projects are projects that discharge groundwater to land from excavation activities or dewatering of underground utility vaults . Dischargers seeking - coverage under the General Order or Waiver must file a Notice of Intent with the Central _ Valley Water Board prior to beginning discharge . For more information regarding the Low Threat General Order and the application process , visit the Central Valley Water Board website at: http : //www . waterboards . ca . gov/board decisions/adopted orders/water quality/2003/ wgo/wgo2003 - 0003 . pdf For more information regarding the Low Threat Waiver and the application process , visit the Central Valley Water Board webs-ite at: https : //www . waterboards . ca . gov/centralvalley/board decisions/adopted- orders/wain ers/r5-2018 -0085 . pdf r; Limited Threat General NPDES Permit If the proposed project includes construction dewatering and itis necessary to discharge the groundwater to waters of the United States , the proposed project will- require coverage under a National Pollutant Discharge Elimination System ( NPDES ) permit . Dewatering discharges are typically considered a low or limited threat to water quality and may be covered under the General Order for Limited Threat Discharges to Surface Water ( Limited Threat General Order) . A complete Notice of Intent must be submitted to the Central Valley Water Board , to obtain coverage under the Limited Threat General Order . For more information regarding the Limited Threat General Order and the application process , visit the Central Valley Water ( Board website at : https ://www . waterboards . ca . gov/centralvalley/board decisions/adopted orders/gene e ral orders/r5 -2016-0076-01 . pdf I NPDES Permit If the proposed project discharges waste that could affect the quality of surface waters of the State , other than into a community sewer system , the proposed project i will require coverage under a National Pollutant Discharge Elimination System ( NPDES ) permit . A complete Report of Waste -Discharge must be submitted with the Central Valley Water Board to obtain a NPDES Permit . For more information regarding the NPDES Permit and the application process , visit the Central Valley j Water Board website at: https : //www . waterboards . ca . qov/centraIvaIley/-help/permit/ I PA- 1700196 — Informational Letters 11